If you mean sexually attracted then yes, I'm 100% sure I'm NOT attracted to men. In fact even though I hate homophobia, or any prejudice and believe people should be allowed to live how they like, as long as it doesn't harm others, the very thought of going anywhere near a guy's unmentionable bits (front or back) makes me shudder - and not in a good way.
I'd imagine most straight men are like that - isn't that the definition of being straight? Obviously there must be guys who pretend to be straight when they're not - or even who fool themselves, but the oft-mooted idea that everyone is attracted to the same sex sounds extremely far-fetched to me. I suspect some of it is down to wishful thinking on the part of gay guys and girls. After all, it's not uncommon for the the reverse to happen, with straight men convincing themselves that any lesbian could be "turned" in the right circumstances and kidding themselves that they have a chance with the hot gay girl who drinks in their Local.